Drier-tray



@.EJOHNSON.

DRIER TRAY.

APPLICATIQN FILED SEPT|19,19I9.

Patented Aug. 10, 1920.

MM @gg/W f" M l ATTUHNEYS UNITED STATES PATENT oFF-ICE.

CARL EDWARD JOHNSON, OF BOUNDBROOK, NEW JERSEY.

Damn-TRAY.

To all whom it may concern:

Be it known that I, CARL EDWARD JOHN- soN, a citizen of the United States, and a resident of Boundbrook, in the county of Somerset and State of New Jersey, have invented a new and Improved Drier-Tray, of which the following is a full, clear, and eX- act description.

This invention relates to improvements in drier trays and has reference more particularly to drier trays used in driers for the quick drying of dyes, paints, colors, chemicals, etc.

An object of the invention is to provide a drier tray which will be simple and cheap to construct.

Another object of the invention is to provide a drier tray made of one sheet of metal bent or pressed into a shape such that a maximum drying surface will be exposed to the material to be dried and to provide a plurality of passages in said tray which allow the free circulation of heated air.

Reference is to be had to the accompanying drawing forming a partV of this specification in which it is understood that the drawing is merely illustrative of one eX- ample of the invention and in which- Figure 1 is a perspective view of the drier tra Iyg. 2 is a section through Fig. 1 on line 2-2 the same being on an enlarged scale.

F ig. 3 is a fragmentary view of the tray bottom removed from its frame.

Referring to the accompanying drawing by numerals, 10 is a frame of any suitable construction, such as four angle irons fastened together at the corners by means of angle fasteners 11.

The tray bottom is formed preferably from a thin metal sheet bent or pressed to form a series of parallel channels with bottoms 12 and tapering flanges 13 so arranged as to form an air passage 14, between the sides of adjacent channels.V Two opposite edges of the metal sheet are downwardly disposed to form a U-shaped member 15, which engages the vertical legs of the channels 10 thereby supporting the series of channels in position. A plurality of rods 16 extend through holes 17 in the flanges 13 of the channels and are fixed at each end to the vertical leg of the angle l0 so as to support the series of channels and prevent Specification of Letters Patent. Patented Aug. 10, 1920.

Application filed September 19, 1919.

Serial No. 324,962.

them from sagging under the weight of the material to be dried. The upright legs of two of the opposite angles abut against the ends of the channels so as to close the same.

When these trays are placed in a drying chamber of any common construction and warm air passed through said chamber, it circulates in the air passages 14, and owing to the increased surface exposed to the material to be dried, a faster and more complete drying is obtained.

Vhile the bottom of the tray is preferably fashioned from sheet metal, any other material adapted to the purpose may be employed.

I would state in conclusion that whileA the illustrated example constitutes a practical embodiment of my invention, I do not limit myself strictly to the mechanical details herein illustrated, since manifestly the same yclaim as new and desire to secure by Letters Patent:

1. A drier tray comprising a frame, a bottom formed of a plurality of channels with upright flanges, said flanges forming a plurality of air passages therebetween, and means for supporting said channels.

2. A drier tray comprising a plurality of angle strips, means for fastening said strips together to form a frame, and a pluralit of parallel channels formed from a single s eet of materiall and supported by said frame.

3. A drier tray comprising a plurality of angle strips each'arranged with one of its legs vertical, means for fastening said strips together end to end to form a frame, a plurality-of parallel channels formed from a single sheet of material, said channels having upright tapering flanges and having their webs arranged in one plane, said flanges of adjacent channels forming Va plurality of air passages therebetween, a U- shaped member formed on each end of said metal sheet so as to engage the frame, a plurality of bolts passing through the Hanges of the channels and engaging the frame so as to support said channels.

4. A drier tray comprising a plurality of angle strips each arranged with one leg vertical,1neans for fastening said strips tegether passages therebetween, the vertical legs of end to end t0 form a frame, a plurality of sind frame angle strlps engaging the ends parallel channelsA formed from a- "slngle of salcl channels so as to closethe same.

sheet of metal saidy channels havin@ up- I 5 right taperingflztnges and vzulangeclwith CARL EDVA-RD JOHNSON the Webs in one plane, said flanges of ad- Witness:

jacent channels forming a plurality of air AANDREW D.FLAMMER. 

